//
// Location.swift
//
// Copyright (c) 2015-2019 Damien (http://delba.io)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//

#if PERMISSION_LOCATION
import CoreLocation

let LocationManager = CLLocationManager()

private var requestedLocation = false
private var triggerCallbacks  = false

extension Permission: CLLocationManagerDelegate {
    public func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
        switch (requestedLocation, triggerCallbacks) {
        case (true, false):
            triggerCallbacks = true
        case (true, true):
            requestedLocation = false
            triggerCallbacks  = false
            callbacks(self.status)
        default:
            break
        }
    }
}

extension CLLocationManager {
    func request(_ permission: Permission) {
        delegate = permission

        requestedLocation = true

        switch permission.type {
        case .locationAlways: requestAlwaysAuthorization()
        case .locationWhenInUse: requestWhenInUseAuthorization()
        default: break
        }
    }
}
#endif
